qt creator: stop button doesn't stop the process

Hi, I'm using external tool for debugging, basically it's just a batch file which is running some java script which is working with proprietary debugger. Anyway when I'm running it in Windows 7 shell everything is fine, it works and if you will close a terminal debug session (by closing a window or ctrl+c) will be terminated normally, so script and stuff works fine. But if you will try to run it in qt creator console and push "stop" button to terminate debug session qt creator won't close session and it will be still in processes so it will cause a debugger fault on the next run. So why stop button doesn't stop a process? I still can debug it in terminal window but in console would be better. Thanks.